2070402257 has 16 divisors (see below), whose sum is σ = 2582339712. Its totient is φ = 1612638720.

The previous prime is 2070402253. The next prime is 2070402259. The reversal of 2070402257 is 7522040702.

It is not a de Polignac number, because 2070402257 - 2² = 2070402253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2070402251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276353 + ... + 283745.

It is an arithmetic number, because the mean of its divisors is an integer number (161396232).

Almost surely, 2^2070402257 is an apocalyptic number.

It is an amenable number.

2070402257 is a deficient number, since it is larger than the sum of its proper divisors (511937455).

2070402257 is a wasteful number, since it uses less digits than its factorization.

2070402257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11048.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 2070402257 is about 45501.6731230842. The cubic root of 2070402257 is about 1274.5344463554.

Adding to 2070402257 its reverse (7522040702), we get a palindrome (9592442959).

The spelling of 2070402257 in words is "two billion, seventy million, four hundred two thousand, two hundred fifty-seven".